Abstract
By using the finite-temperature quantum field theory, we calculate the finite-temperature effective potential and extend the improved quark mass density-dependent model to finite temperature. It is shown that this model can not only describe the saturation properties of the nuclear matter, but also explain the quark deconfinement phase transition successfully. The critical temperature is given and the effect of the ω-meson is addressed.
Highlights
Quark- meson coupling(QMC) model suggested by Guichon [1] is a famous hybrid quark meson model, which can describe the saturation properties of nuclear matter and many other properties of nuclei successfully
The nuclear system was suggested as a collection of MIT bag, ω- meson and σ- meson and the interactions between quarks and mesons are limited within the MIT bag regions because the quark cannot escape from the MIT bag
The reason is that the interactions between quarks and mesons are limited within the bag regions, the multireflection of quarks and mesons by MIT bag boundary must be taken into account for getting the free propagators
Summary
Quark- meson coupling(QMC) model suggested by Guichon [1] is a famous hybrid quark meson model, which can describe the saturation properties of nuclear matter and many other properties of nuclei successfully. The QMC model is successful in describing many physical properties of nuclear systems, but as was pointed in our previous paper [6], it has two major shortcomings: (1) It is a permanent quark confinement model because the MIT bag boundary condition cannot be destroyed by temperature and density. It cannot describe the quark deconfinement phase transition. These two shortcomings inherited from the MIT bag To overcome these two shortcomings, in our previous paper [6], we suggested an improved quark mass density- dependent(QMDD) model. Since instead of the MIT bag in QMC model, a FL soliton bag is introduced in IQMDD model, we can use our model to discuss the quark deconfinement phase transition.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Physics G: Nuclear and Particle Physics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
